Rare-earth-free propulsion motors for electric vehicles: A technology review
By Jordi-Roger Riba, Carlos López-Torres, Luís Romeral, Antonio García. 2016
240 citations recorded by the source corpus.
Several factors including fossil fuels scarcity, prices volatility, greenhouse gas emissions or current pollution levels in metropolitan areas are forcing the development of greener transportation systems based on more efficient electric and hybrid vehicles. Most of the current hybrid electric vehicles use electric motors containing powerful rare-earth permanent magnets. However, both private companies and estates are aware of possible future shortages, price uncertainty and geographical concentration of some critical rare-earth elements needed to manufacture such magnets. Therefore, there is a growing interest in developing electric motors for vehicular propulsion systems without rare-earth permanent magnets. In this paper this problematic is addressed and the state-of-the-art of the electric motor technologies for vehicular propulsion systems is reviewed, where the features required, design considerations and restrictions are addressed.
Subfields: Automotive Engineering, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/5f93b67406cc2eb79187e542ac1a55acf1b96fb5
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Citations in the corpus
- Loss Minimization and Maximum Torque-Per-Ampere Operation for Variable-Pole Induction Machines (2020, unknown): “nets [2], [3].”
- The Rare Earth Elements: Demand, Global Resources, and Challenges for Resourcing Future Generations (2018, background): “tions, which have been developed since 2011–2012 when REE prices increased sharply and supply availability became problematic for manufacturers (Riba et al. 2016).”
- High Power Density Electrical Machines for Electric Vehicles—Comprehensive Review Based on Material Technology (2019, unknown): “15) has attracted increased attention due to its high torque density [42].”